WorldCat Identities

Favre, Éric (1961-....; chercheur en génie chimique)

Overview
Works: 41 works in 51 publications in 2 languages and 74 library holdings
Roles: Thesis advisor, Other, dgs, Opponent, Publishing director, Author
Publication Timeline
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Most widely held works by Éric Favre
Hydrogen recovery and utilization from water splitting processes by Sari Alsayegh( )

1 edition published in 2018 in English and held by 16 WorldCat member libraries worldwide

Membrane engineering for the treatment of gases by E Drioli( )

2 editions published in 2011 in English and held by 6 WorldCat member libraries worldwide

Annotation
Génie des produits et formulation : [textes des communications présentées à : 8ème congrès francophone de génie des procédés, 17-19 octobre 2001, Nancy, France] by Société française de génie des procédés( Book )

4 editions published in 2001 in French and held by 5 WorldCat member libraries worldwide

Étude et mise au point d'un bioréacteur à membranes denses pour l'épuration biologique d'eaux résiduaires par aération sans bulles by Fayçal Ounaies( Book )

2 editions published in 2003 in French and held by 3 WorldCat member libraries worldwide

Une étude pilote de mise au point d'un bioréacteur permettant une aération sans bulles à l'aide de membranes denses en polydiméthylsiloxane est présentée. Deux types de membranes planes en silicone: homogène tramée d'épaisseur 175 [mu]m (SILASTIC) et composite d'épaisseur 15 [mu]m (GFT) ont été testées. Dans un premier temps, la perméabilité à l'oxygène et à l'air des deux membranes, évaluée expérimentalement, a montré des valeurs proches et comparables à celles rapportées dans la littérature. La capacité d'oxygénation en eau claire dans un dispositif pilote à recirculation de liquide a été ensuite déterminée pour une série de conditions d'écoulement dans le module plan. L'exploitation des données conflrIne le fait que la résistance au transfert d'oxygène est localisée principalement dans la couche limite liquide, qui peut être évaluée à l'aide de corrélations prenant en compte les conditions hydrodynamiques. Une corrélation proposée par Yang et Cussler a donné les estimations les plus en accord avec les valeurs expérimentales. Des essais de développement d'un biofilm ont ensuite été effectués, démontrant l'aptitude du dispositif à combiner une aération sans bulles et une fonction support pour les micro-organismes. Parmi les facteurs influençant le niveau de développement du biofilm et son maintien, la nature de la membrane ainsi que les conditions hydrodynamiques jouent un rôle prépondérant. Le rôle des conditions hydrodynamiques sur la dynamique de formation et de détachement du biofilm a été interprété à partir de la contrainte de cisaillement exercée par le liquide en écoulement. Une étude globale d'épuration a finalement été réalisée à l'aide du dispositif sur plus de 30 jours et a démontré la possibilité de développer une capacité d'épuration vis à vis de la pollution carbonée, dont la faible valeur résulte de l'aire spécifique insuffisante du module membranaire
An engineering analysis of rotating sieves for hybridoma cell retention ins stirred tank bioreactors by Eric Favre( )

1 edition published in 1992 in English and held by 2 WorldCat member libraries worldwide

Étude du transfert diffusionnel de solutés macromoléculaires dans les hydrogels d'alginate de calcium by Delphine Mazens( Book )

2 editions published in 2005 in French and held by 2 WorldCat member libraries worldwide

This study deals with diffusion of macromolecules (pullulans with a large range of molecular weights standing from 780 to 788 000 g.mol-1) into spherical particles of calcium alginate hydrogel. Thanks to variations of polymer volumic fraction in the hydrogel and of solute molecular weight, different experimental situations have been experimented. Measurements of diffusion kinetics have been performed with 3 independent methods which have demonstrated various adaptability to this situation: uptake experiments using or not an analysis loop and column experiments. This assays showed that uptake experiments with an analysis loop is more convenient. Effect of the analytic loop on the results has been studied and lead to the definition of experimental recommendations. Moreover, a parameters sensibility analysis enables the determination of an optimum of sensibility for diffusion coefficient determination. Applying these recommendations, diffusion and partition coefficients have been estimated. Characterisation of the system alginate/pullulan and transfert data were used to modelling relationships between structural and diffusional properties. Both results obtained in diffusion and partition showed that a hydrodynamic approach postulating a porous model for the gel gave the best adequation between models and experiments
Contacteurs à membranes denses pour les procédés d'absorption gaz-liquide intensifiés : application à la capture du CO₂ en post combustion. by Phuc Tien Nguyen( Book )

2 editions published in 2011 in French and held by 2 WorldCat member libraries worldwide

The present work aims to explore the intensification of gas-liquid absorption processes. This study is applied to post combustion CO₂ capture by means of membrane contactors in comparison to packed columns. Microporous hollow fiber membrane contactors lead to high mass transfer but wetting problems are likely to occur and result in tremendous deterioration in performances with time. Our objective is to develop composite hollow fibers based on a microporous structure and a thin dense layer highly permeable to CO₂, in order to create a real barrier to liquid penetration and to limit mass transfer resistance. Super glassy polymers as PTMSP and Teflon AF2400 were selected for their extremely high CO₂ permeability and their chemical resistance to MEA (reference absorption liquid). Composite hollow fibers were made by coating and the dense layers obtained are thin (1 to 2 microns). Composite hollow fiber membrane contactors were tested for the separation of a CO₂/N2 mixture with an aqueous solution of MEA. Capture ratios achieved by composite hollow fibers are similar to those measured for microporous membranes and the dense layer prevents from wetting problems. Simulations based on 2D modeling of the mass transfer, show that the performances of composite hollow fiber membrane contactors, under operating conditions close to the industrial case, can lead to an intensification factor up to 6 compared to packed columns
MEMPRO. intégration des membranes dans les procédés : Toulouse 9, 10,11 avril 2014 by MEMPRO 5 : intégration des membranes dans les procédés( )

1 edition published in 2014 in English and held by 2 WorldCat member libraries worldwide

Transport multi-composants dans les polymères : séparation hydrocarbures / hydrogène par membrane à sélectivité inverse by Guillain Mauviel( Book )

2 editions published in 2003 in French and held by 2 WorldCat member libraries worldwide

La séparation hydrocarbures / hydrogène par membrane à sélectivité inverse est étudiée. Le premier objectif est d'élaborer des matériaux dont la sélectivité est accrue. Des composites silicone - charges minérales sont réalisées, mais l'amélioration attendue n'est pas observée. Le second objectif est de modéliser le transport de plusieurs pénétrants dans les élastomères. En effet, le modèle de perméabilité ne permet pas de décrire correctement la perméation lorsque des vapeurs sont présentes. Dès lors, plusieurs phénomènes sont considérés: l'interdépendance diffusionnelle, la synergie de sorption, le gonflement et l'entraînement convectif. La dépendance des diffusivités avec la composition est représentée par la théorie du volume libre. La résolution numérique du modèle permet de prédire correctement les flux en mélange à partir des mesures sur les corps purs. Pour les systèmes étudiés, l'interdépendance diffusionnelle est prépondérante et la synergie de sorption ne peut être négligée
Préparation et étude de Membranes Asymétriques Polyalcoxyétherimides (PEI) pour la séparation de composés organiques de l'eau by Ayman Taha Elgendi( Book )

2 editions published in 2010 in French and held by 2 WorldCat member libraries worldwide

The work aimed to prepare co-polyalkylether-imide (PEI) asymmetric membranes in order to get high flux water selective polymeric membranes suitable for the separation of organic molecules from aqueous mixtures by membrane processes. The separation of liquid mixtures (i.e. toluene - heptane, water - ethanol and low concentrated organic solute in aqueous solutions) was studied by pervaporation (PV) and by nanofiltration (NF) using homemade integrally skinned asymmetric PEI membranes. These membranes were prepared under controlled experimental conditions from DMF-H2O solutions of the corresponding polyamic acid (PAA) with respect to the ternary phase diagram; after the wet phase inversion in a water bath, the PAA membranes were imidized by thermal treatment. The membrane physical properties (IR, TGA) were characterized and the related morphologies, recorded by SEM, were used to optimize the asymmetric membrane preparation to improve the separation properties by tuning the thickness of the dense top layer. The performances of the pervaporation and nanofiltration separations were examined in the light of the influence of three sets of parameters, i.e. membrane elaboration parameters (dope composition, inversion bath temperature), experimental permeation conditions (temperature, applied pressure) and solute molecular properties (molecular weight, radius, polarity). The PV results showed that tight asymmetric PEI membranes could well be obtained, giving rise to a molecular selectivity in agreement with the solution-diffusion model. The NF results obtained with diluted organics in water (≈500ppm) have shown that the degree of rejection of the organic solutes was strongly linked to the PEI elaboration conditions and to the solute properties. The molecular cutoff values (MWCO) of the membranes were determined with a series of polyethyleneglycol (400 < Mw (g/mole) <6000) for an applied NF pressure up to 10 Bar; it was shown that the PEI membrane MWCO could be ranged between 400 and 1000g/mol at 30°C. It was also found with some PEI membranes that high permeation fluxes together with good separation selectivity could be obtained leading to interesting performances compared to literature data. Thus, it is expected that the development of these new asymmetric block copolyimide rubbery membranes might give rise to high performance membrane systems for applications in liquid-liquid separations, in particular in nanofiltration separations
Comportement sous eau des déchets radioactifs bitumes : validation expérimentale du modèle de dégradation Colonbo by Benoît Gwinner( Book )

2 editions published in 2004 in French and held by 2 WorldCat member libraries worldwide

The behavior of bituminized waste is studied in geological repository conditions, i.e. under wet conditions. A model, called COLONBO, aiming at simulating the leaching mechanisms, has been developed. This work has the purpose to validate experimentally some results predicted by the model. Firstly, the leaching kinetics, that means water uptake and salts releases, have been followed with time. Secondly, porous structure resulting from the leaching has been observed with an environmental scanning electron microscope and quantified using some classical images analysis methods. Thirdly, the mass transfer properties of leached bituminized waste have been measured in diffusion cells using radioactive tracers. These three experiment types validate the COLONBO model results and consolidate the phenomenology. Moreover some ways aiming at improving the model have been proposed
Optimal Helical Tube Design for Intensified Heat / Mass Exchangers by Omran Abushammala( )

1 edition published in 2020 in English and held by 1 WorldCat member library worldwide

La recherche de solutions technologiques visant à minimiser la taille d'un dispositif, qualifiée d'intensification, est un objectif classique du génie des procédés. Dans ce mémoire, les possibilités d'intensification offertes par des tubes hélicoïdaux sont étudiées, à la fois pour des échangeurs de chaleur et de matière. L'utilisation de tubes hélicoïdaux en lieu et place de tubes droits présente en effet un intérêt à la fois en termes d'augmentation de la surface d'échange par unité de volume entre les deux fluides circulant dans l'échangeur et par la possibilité d'augmentation des transferts par génération de vortex de Dean dans les tubes. Un ensemble de simulations de mécanique des fluides numérique a été réalisé et confronté à des résultats expérimentaux. Au final, sur la base d'une démarche systématique faisant appel à des corrélations, une réduction volumique d'un facteur 8 est obtenue, tant pour les échangeurs de chaleur que pour les contacteurs à membranes
Étude du transfert diffusionnel de solutés macromoléculaires dans les hydrogels d'alginate de calcium by Delphine Mazens( )

1 edition published in 2005 in French and held by 1 WorldCat member library worldwide

This study deals with diffusion of macromolecules (pullulans with a large range of molecular weights standing from 780 to 788 000 g.mol-1) into spherical particles of calcium alginate hydrogel. Thanks to variations of polymer volumic fraction in the hydrogel and of solute molecular weight, different experimental situations have been experimented. Measurements of diffusion kinetics have been performed with 3 independent methods which have demonstrated various adaptability to this situation: uptake experiments using or not an analysis loop and column experiments. This assays showed that uptake experiments with an analysis loop is more convenient. Effect of the analytic loop on the results has been studied and lead to the definition of experimental recommendations. Moreover, a parameters sensibility analysis enables the determination of an optimum of sensibility for diffusion coefficient determination. Applying these recommendations, diffusion and partition coefficients have been estimated. Characterisation of the system alginate/pullulan and transfert data were used to modelling relationships between structural and diffusional properties. Both results obtained in diffusion and partition showed that a hydrodynamic approach postulating a porous model for the gel gave the best adequation between models and experiments
Modelling of Hollow Fibre Membrane Contactors : Application to Post-combustion Carbon Dioxide Capture by David Ricardo Albarracin Zaidiza( )

1 edition published in 2016 in English and held by 1 WorldCat member library worldwide

Post-combustion CO2 capture (PCC) is an important strategy in mitigating greenhouse effect. The reference process in PCC is the CO2 absorption into amine aqueous solutions, followed by the regeneration (or stripping) of the solvent. The robustness of packed columns makes it the standard technology for both absorption and stripping steps. However, the treatment of large quantities of flue gases requires itself equipment of a large size. Hollow fibre membrane contactors (HFMC) are considered as one of the most promising strategies for intensified CO2 absorption process, due to their significantly higher interfacial area than that of packed columns, allowing to reduce the equipment size. In addition, this would reduce the energy penalty of the process by reducing the required amount of stripping steam. However, despite the potential advantages of HFMC, very few investigations have studied implementing this technology for PCC within an industrial framework. To fill this lack, the performances of both absorption and stripping steps using HFMC under industrial conditions were estimated by modelling and simulation. To identify the optimal modelling strategy, transfer models with different levels of complexity were developed ranging from one-dimensional isothermal single-component to two-dimensional adiabatic multi-component. Simulation results of both absorption and stripping steps revealed that, compared to traditional packed columns, contactor volume reduction factors comprised between 4 and 10 might be achieved using HFMC. However, since the stripping operating conditions are very close to thermodynamic equilibrium, HFMC can hardly reduce the energy consumption of the process
Développement d'un procédé innovant d'épuration du biogaz par mise en oeuvre de contacteurs à membranes by Valentin Fougerit( )

1 edition published in 2017 in French and held by 1 WorldCat member library worldwide

Upgrading is an attractive pathway for biogas utilization. Yet, the costs associated to these processes are still an obstacle to a widespread development, specifically in the case of farm anaerobic digestion units.This PhD has assessed membrane contactor, a technology derived from the artificial lung, for the development of a robust gas-liquid physical absorption process meeting the biogas industry expectations. A modular experimental pilot (150-880 NL/h biogas) was designed to investigate the performances in terms of methane recovery R_CH4 and methane quality y_CH4,out.The membrane contactor technology turned out to be suitable to produce a gas-grid quality biomethane. Key operating parameters were identified through a Design of Experiments. Among known process limitations, membrane wetting was found to have little influence on CO2 absorption (below 10.5%): a new pore wetting description was suggested. Gas composition was a stronger limitation: the CO2 mass transfer coefficient was divided by a factor 2-3 in the presence of a gas mixture instead of as a pure gas.Process configurations and solvents were successively tested to improve the performances. The addition of a methane recycling loop and the replacement of water by a saline solution (KCl) were combined into a patent and reached the targeted performances (R_CH4=98.7%, y_CH4,out=97.5%): the corresponding absorbed flux is 42 NL/m2/h CO2.For a process upscaling purpose, an original mass transfer model was developed to describe the specific internal geometry of the membrane module. Firstly optimized and validated for the absorption of pure CO2, this numerical tool has required an optimized additional correction inspired from diffusion laws to account for the mass transfer limitation observed for a binary gas mixture.Process designs are suggested for 3 industrial cases (100, 250 and 500 Nm3/h biogas) based on an available membrane contactor range. The process sizings resulting from the dimensional analysis methodology or numerical simulation differ from 25 to 40 % and must then be confirmed
Study of the separation by organic solvent nanofiltration of diluted solutes using commercial, dense and porous membranes and their derivatives by deposition of polyelectrolyte nanolayers by Mahbub Morshed( )

1 edition published in 2019 in English and held by 1 WorldCat member library worldwide

The objective of this study was to improve the OSN separation performance of commercial membranes for metathesis applications in which highly diluted catalysts are used. In this work, commercial polymeric membranes were first studied to characterize their performance in organic media using very dilute solute-solvent binary mixtures. Based on a literature review, it was shown that the PERVAP4060 membrane, of which PDMS is the dense active layer, was a promising candidate for organic solvent nanofiltration (OSN). As a porous membrane, the AMS and PAN commercial supports have also been taken into account. In this study, we considered the modification on the surface to improve the separation properties of polymeric OSN membranes. Ar/O2 plasma and/or polyelectrolytes multilayers were used for the preparation of new prototype membranes. Unmodified and modified membranes were tested under OSN conditions using binary feed mixtures. Several highly dilute solutes, organophosphorus ligand R-BINAP, phase transfer catalyst ToABR, and linear alkanes have been studied. Both R-BINAP and ToABR were used in the range of 0.0001 to 0.5% by weight, and most experiments were subsequently performed with 0.05% solute concentrations in toluene. It has been shown that PDMS can retain 80% R-BINAP and about 93% ToABr in toluene. After modification by the LBL deposition, the rejection is improved with the modified PERVAP4060 membranes, leading to an 88% rejection of R-BINAP with a deposit of 10 PAH / PSS polyelectrolyte bilayers at the surface and this rejection being able to reach 95% when the number of bilayers is 20. ToABr rejection increases to 97% with the ten bilayered membranes. The performance of the membrane was studied under different pressures of between 1 and 40 bar; the high rejection, still observed in these OSN conditions, strongly supports a solution-diffusion transfer mechanism through the PDMS. The treatment of ternary mixtures mimicking the catalyst/solute/ solvent mixture corresponding to the hydroformylation has also been studied; no evidence of coupling was detected, and the highest retention remained unchanged. On the other hand, the improvement of the rejection also observed from the porous membranes after modification. The rejection of C44 in the AMS was reached 75% after modification by tention10 bilayers of PDDA / PSS, whereas it was only 25% before modification. In the modified PAN, the rejection of the solutes obtained is in the range of 37 to 50%, whereas it was only 3 to 7% by weight before modification. The disadvantage of the porous membrane, however, is the sharp decrease in flux after the deposition of the multiple layers
Bugatti et Delage by Eric Favre( Book )

1 edition published in 2017 in French and held by 1 WorldCat member library worldwide

Production d'hydrogène par fermentation obscure : intensification du procédé par extraction des gaz et développement d'un bioréacteur à membrane by Valentin Clion( )

1 edition published in 2016 in French and held by 1 WorldCat member library worldwide

Dans le contexte du développement de l'hydrogène-énergie, de nouvelles voies de production renouvelables sont étudiées, parmi lesquelles la fermentation obscure est un processus biologique convertissant la biomasse. Dans cette étude, ce procédé a été optimisé en réacteur agité semibatch par la sélection de cultures mixtes (boues de station d'épuration) et l'optimisation des paramètres de fermentation associés (température, ajout de substrat, régulation du pH). La présence majoritaire de bactéries du genre Clostridium a été observée dans le milieu fermentaire. Différents modes d'extraction des gaz produits ont été évalués, permettant d'intensifier le procédé par l'utilisation d'un gaz de balayage (N2 ou CO2). La mise en œuvre efficace en fonctionnement continu d'un bioréacteur membranaire dans une configuration d'extraction gaz/liquide a permis d'améliorer le rendement (> + 90%) et la productivité en H2 (> + 300%) par rapport au mode de fonctionnement continu en réacteur agité. Enfin, l'utilisation d'un substrat réel (bourbes viticoles) a permis de prouver la faisabilité du procédé dans une perspective d'industrialisation
Développement d'un dispositif de production et de purification portatif d'un médicament : application à la mucoviscidose by Sophie Arenillas( )

1 edition published in 2016 in French and held by 1 WorldCat member library worldwide

La mucoviscidose est une maladie génétique mortelle qui limite ou empêche la production de composés antimicrobiens tels que l'hypothiocyanite (OSCN-) et la lactoferrine. L'objectif de cette étude est de produire un médicament contenant ces deux composés antimicrobiens (10 mL). Cependant l'hypothiocyanite est instable et nécessite une production juste avant administration. Pour cela, une unité de production de médicament portable, destinée à une utilisation par le patient à domicile, est développée avec un appareil réutilisable comprenant le système de pilotage du procédé et une cassette jetable composée par le circuit fluidique et le module membranaire. Le développement du circuit fluidique associé à un module membranaire nécessaire à la purification de l'hypothiocyanite, présent dans le milieu réactionnel, en prenant en compte les contraintes pharmaceutiques, constitue le verrou scientifique et technologique de cette thèse. Au travers de deux géométries membranaires testées, l'étude des paramètres opératoires pour la réalisation de la réaction enzymatique (mécanique des fluides, ultrafiltration, réaction) a permis de mieux appréhender et d'optimiser la production d'hypothiocyanite mais aussi de mettre en évidence les paramètres clés de l'élimination de la glycérine, présente initialement dans les membranes. En parallèle des essais cliniques modifiant les contraintes imposées, l'unité de production et la cassette jetable développées ont permis d'obtenir des résultats proches de ces nouvelles contraintes
Étude de la perméabilité de polymères semi-cristallins en présence de mélanges de gaz by Florian Sarrasin( )

1 edition published in 2013 in French and held by 1 WorldCat member library worldwide

Polymer materials are used in numerous applications where the knowledge and the control of their transport properties are required. Concerning the flexible oil and gas pipes, the main function of polymer sheaths is to ensure the pipe leakproofness with respect to the external environment and also the conveyed fluids such as water, acid gases, crude oil. It is essential to have a deeper understanding of phenomena concerning the permeation of gases at very high pressures and temperatures through thermoplastic polymers, more especially in term of interactions between polymer chains and gases mixtures and particularly with hydrogen sulfide. Thanks to the utilisation of apparatus developed to study the permeability of polymers in presence of gas mixtures, in particular with small contents of hydrogen sulphide, we studied the influence of the gas mixture composition on the barrier properties of two kinds of PVDF used in applications such as sheath of flexible pipes. In a moderate pressure range, pressure effects of pure gases (CH4 and CO2), then coupling effects between the gases CH4, CO2 and H2S have been evidenced on the permeability, the diffusion and the solubility. Monte Carlo simulations in the osmotic ensemble have been performed. It allowed studying the solubility of gases in PE, in particular at high pressure. The results first confirm the experimental observations made at moderate pressure: sorption mode are Henry for CH4 and CO2 and Flory Huggins for H2S. It also allow to evidence effects of hydrostatic pressure which limit gas sorption and polymer swelling in the domain of very high pressure (up to 2000 bar), even in gas mixture condition. The effects evidenced in this study have been modelled via exponential laws. A simplified Flory Huggins type for the solubility, a Long type for the diffusion and an approach based on the works of Naito to take into account the hydrostatic pressure effects observed on the solubility
 
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Membrane engineering for the treatment of gases
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Alternative Names
E Favre investigador

E Favre wetenschapper

Eric Favre researcher

Languages
French (22)

English (8)